Drugs like cocaine and even marijuana and nicotine affect the brainâs natural function. The drug overwhelms the brain with a chemical called dopamine. Dopamine makes the brain and body feel pleasure. When the drug wears off, the dopamine drains out of the userâs system. This makes a person feel that the only way they can feel pleasure is by taking drugs.
March 31, 2015. Apple uses its own signature operating system, which since 2001 has been derived from Unix and known as OS X. Before OS X came OS 9, otherwise known as Classic.. As of June 2014, the latest version of OS X is called Mavericks..
Save. Apple Automator is a computer application developed for the Mac OS X operating system in early 2005 by Apple Inc. It was released as part of Mac OS X Tiger in April 2005. It is an automation program that can be used to perform basic, repetitive tasks without the need for human intervention.